package com.leo.controller;

import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class LoginHandlerInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {

        //登录成功之后，应该有用户的session
        Object loginUser = request.getSession().getAttribute("loginUser");
        String username = request.getParameter("username");
        String password = request.getParameter("password");
        if (loginUser == null) {
            request.setAttribute("msg","没有权限,请先登录");
            request.getRequestDispatcher("/index.html").forward(request,response);
            return false;
        }/*else if ((!loginUser.equals(request.getParameter("username")))&&!request.getParameter("password").equals("123456")){
            request.setAttribute("msg","用户名密码错误");
            request.getRequestDispatcher("/index.html").forward(request,response);
            return false;
        }*/else {
            return true;
        }


    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {

    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {

    }
}
